<!DOCTYPE html>
<html lang="en" xmlns:th="https://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Login</title>
</head>
<body>
<div th:if="${param.error}">Invalid username and password.</div>
<div th:if="${param.logout}">You have been logged out.</div>
<form th:action="@{/login}" method="post">
    <div>
        <label>User Name : <input type="text" name="username"></label>
    </div>
    <div>
        <label>Password : <input type="password" name="password"></label>
    </div>
    <div><input type="submit" value="登录"></div>
</form>
</body>
</html>